JCE Software Chemistry Comes Alive!
Bromination of Pentene (Quiz Version)

Bromine is added to pentane and pentene. In the absence of intense light, only pentene reacts. (This version has no labels or voice)

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2.5 MB, 41 seconds, no sound

File: MOVIES/KJORGANIC/BROMPENTQ.MOV

Discussion
Bromine dissolved in carbon tetrachloride is added to pentane and pentene. The pentane does not react with the bromine and the solution stays orange. When bromine is added to pentene, the solution eventually becomes clear. In pentene, bromine adds across the double bond to produce 1,2 -dibromopentane, which is colorless.

This version of the movie can be used for testing students.


Design, Text, and Demonstration:  
  Kristin Johnson University of Wisconsin - Madison, Madison, WI 53706
Video production and editing:  
  Jerrold J. Jacobsen University of Wisconsin - Madison, Madison, WI 53706
  Greg Minix University of Wisconsin - Madison, College of Engineering, Madison, WI 53706